Is the 2021 Infiniti QX80 reliable?

It’s generally considered reliable in its engine and transmission, with most complaints centering on electronics, brake wear, and occasional suspension noises rather than catastrophic drivetrain failures.

What are the most common 2021 Infiniti QX80 problems?

Common issues reported include infotainment/connection glitches, premature brake wear or braking vibration, suspension clunks over bumps, and intermittent parking sensor/camera warnings.

Are 2021 Infiniti QX80 maintenance costs high?

Maintenance can be above average due to the vehicle’s size and luxury parts pricing, with tires, brakes, and fluid services costing more than smaller SUVs—especially if you tow or drive in harsh conditions.

What are the best years to buy an Infiniti QX80?

Many shoppers prefer 2018+ models due to major updates, and 2020–2021 models are often sought for their balance of updated features and a proven platform; the best year also depends on service history and options.

What should I check before buying a used 2021 Infiniti QX80?

Verify service records, test all infotainment and camera functions, check for brake vibration on a test drive, inspect tire wear/alignment, listen for suspension clunks, and confirm there are no warning lights or unresolved recalls. For a deeper dive, get a complete owner’s guide with full specs, towing details, fluid capacities, and the recommended maintenance schedule for the 2021 Infiniti QX80.

HomeVehicles

Vehicles Compare Blog Get Report

Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2021 Infiniti QX80 Reliability ReportA- grade · low risk · system-by-system breakdown

88/ 100

KeepScore

LOW RISK

Grade: A-

A reliable, comfortable, and capable full-size SUV for those who value proven mechanicals over bleeding-edge tech.

Full system breakdown + what I would do

Quick Facts · 2021 Infiniti QX80

The system most likely to surface first: infotainment system (minor severity).
Has 2 NHTSA recalls on record — the most notable involves the fuel system, gasoline:delivery:fuel pump:control/drive module.
Outscores the 2019 Infiniti QX80 by 5 points — one of the stronger nearby years to consider.

Is the 2021 Infiniti QX80 Worth Buying?

The 2021 Infiniti QX80 stands as a highly dependable full-size luxury SUV, leveraging a proven body-on-frame platform and a robust V8 powertrain. This is a solid choice for buyers prioritizing old-school durability and comfort over cutting-edge technology, offering strong long-term value with diligent maintenance.

Biggest Strengths

Extremely durable V8 engine and 7-speed transmission
Robust body-on-frame construction
Strong resale value for its class

What Tends to Fail First on the 2021 Infiniti QX80

The systems that break first on the 2021 Infiniti QX80. Mileage windows, repair costs, and fix-before-you-buy notes are in the full report.

Infotainment Systemminor

Front Suspension Componentsmoderate

Brake System Wearmoderate

Typical mileage, cost ranges, and the exact what-to-check list are in the full report.

2021 Infiniti QX80 Recall History

2 recalls on record from NHTSA. Check your VIN atnhtsa.gov to see if the repair was performed.

FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP:CONTROL/DRIVE MODULE

Nissan North America, Inc. (Nissan) is recalling certain 2020-2021 Nissan Armada and 2020-2021 INFINITI QX80 vehicles equipped with V8 engines. The impeller can swell and bind within the fuel pump module, causing it to fail.

BACK OVER PREVENTION:DISPLAY FUNCTION

Nissan North America, Inc. (Nissan) is recalling certain 2021 Infinity Q50, Q60, and QX80 vehicles. A software error may deactivate the audio/video control unit screen, preventing the rear-view image from displaying. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

What breaks on the 2021 Infiniti QX80?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

OwnerKeep Passport · $499 · one-time

Just bought a 2021 Infiniti QX80? Keep it that way.

Snap a receipt — AI logs it. Build an OwnerScore. Sell with a buyer-ready Passport dossier.

Other Infiniti QX80 Years to Consider

Compare KeepScores across nearby years of the Infiniti QX80. Click any year for its full report.

All Infiniti QX80 years ranked →Infiniti QX80 years to avoid →Infiniti QX80 common problems →

2021 Infiniti QX80 Alternatives

Similar class, similar year range — ranked by KeepScore.

2019 ChryslerPacifica

82/100

Relevant Products for Your 2021 Infiniti QX80

Parts and accessories matched to your 2021 Infiniti QX80

As an Amazon Associate I earn from qualifying purchases.

Frequently Asked Questions

Full Report